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  1. Scott06

    165 MERCRUISER

    Didn't say merc dealer, they dont troll with old stuff... they sell new. google classic car gauge restoration or repair. You will find several respected companies who repair gauges. problems is they cater to show resto crowd... $$. The one that did my gauges wasn't bad for repair and calibration...
  2. Scott06

    165 MERCRUISER

    look into places that restore gauges for classic cars. Would be surprised if you can't find someone to repair them, but it will not be for the faint of wallet...
  3. Scott06

    Time to chuck the 470

    I didn't because my boat was set up for it (boat was factory offered w 4.3's and 5.0's). Stringers supporting side mounts were long enough to accommodate the 4.5" diff between 4.3 and 5.0 locations and front and back of blocks are identical between 4.3 and SBC. I just plugged the original lag...
  4. Scott06

    Time to chuck the 470

    To the OP since this boat has family value to you and you want to do it right, you best bet is to find a boat (cl/ebay) with a '91 and newer (gen 2 drive) preferably 96 and newer (for vortec engine) that has a roached interior or rotten stringers. Even if block is cracked (get new or reman...
  5. Scott06

    Engine access is never easy ....but...

    Agreed- Last fall I changed my alpha one impeller, which was OEM, after 6 years /280 hrs) could have gone another 6 years. Fair comment on fuel filter but Fuel filter in a car that doesn't have the moisture exposure and tank gets emptied every 2 weeks may present a different challenge to fuel...
  6. Scott06

    Swapped Thunderbolt IV for Delco EST

    Yeah probably set it on tdc on exhaust nit compression stroke. verify firing order then check where it is on tdc on compression stroke. Both valves closed in number one…
  7. Scott06

    Engine access is never easy ....but...

    The fiberglass cut out was there or you cut it to acess? youve just ensured this thread will become another OB vs IO thread… i miss the days when it was just oil threads …
  8. Scott06

    Stall during acceleration

    Only a couple thing i can think of where are your idle mix screws set? I found my edelbrock can idle so lean that when you get into transition circut it stunbled. if i were you tear it down double check needles and seats are floats arent hanging up. Take out jets and boosters to make sure all...
  9. Scott06

    Time to chuck the 470

    No disputing the durability and reliability of a 3.0, had one in a 17 ft sea ray for many years and really beat the snot out of it taking the kids tubing and skiing. Propped correctly it can give decent performance and you are correct that it may be an easier swap. Not a bad suggestion depending...
  10. Scott06

    Stall during acceleration

    most likely the carb needs another rebuild With a good kit. A lot of folks get rebuilt ones off the web that are problematic And or not set up correctly for the application, hence the recommendation to rebuild yours if its is an unmolested core… likely you are lean in transition circuit or...
  11. Scott06

    Time to chuck the 470

    Good point this would be a good option if a V required extensive rework to engine compartment/cowling.... only issue will be going down in power. If you just putz to a swimming spot or evening booze cruise prob doent matter if propped right
  12. Scott06

    Time to chuck the 470

    Here is a 4.3 install drawing https://samerwebapp01apncus01.azureedge.net/mmgw-env-b/filer_public/a6/0e/a60edabe-830a-4a0e-af7c-d296ce044500/43lhalphawithtwo-pieceexhaustmanifold_1996-2001.pdf Here is a 5.7 drawing...
  13. Scott06

    At wits end Runs great for 20miles then knocking then sputtering 3.0

    Is your choke opening. I had it where my choke would intermittently stick closed and foul the plugs like that
  14. Scott06

    HELP 2005 5.0 MPI OVER REV

    LFW... Loose F... Wire. In machines at work I have seen where we have to zip tie the cube relays into the socket.. Also could be a weak or corroded engine ground. I doubt you did anything to the ecu that would likely work or not. Intermittent is likely corrosion in wiring connections and...
  15. Scott06

    Stall during acceleration

    Just make sure it is opening fully. What carb kit did u use to rebuild it? You see a lot of issues with people using cheap kits. Would get a good kit from edlebrock or mikes carb parts. Everyone on here has had to redo carb rebuilds… hardest part is getting it clean… Id strip down and clean all...
  16. Scott06

    HELP 2005 5.0 MPI OVER REV

    There is nothing wrong with a properly done reflash. If it wasn‘t done right you need to go back to who you got it from, but from everything shown here it looks fine. if you have to tap a relay to get to to work replace it or clean the connections feeding power to it. Have you taken it out and...
  17. Scott06

    Mercruiser 3.0 to Mercruiser 4.3 swap

    no one is going to bother you if you go from a 135 hp 3.0 to a 175-220 hp 4.3. It wont be a race car... do the swap and enjoy it
  18. Scott06

    HELP 2005 5.0 MPI OVER REV

    Buy him some beer and he can walk you through it... while you drink 'his' beer... In the end as long as the tach is consistent - that any difference between dash tach and timing light tach is the same you can make it work. I think you will find that your 5800 rpm is like 4800 or so. But other...
  19. Scott06

    HELP 2005 5.0 MPI OVER REV

    So other than a likely inaccurate tach and a potential faulty fuel pump relay the boat performs well now correct?
  20. Scott06

    1978 evinrude 70hp model 70873 problem

    Over heating is influenced by- condition of water pump impeller Thermostat operating correctly clogged or corroded water passages that may impede flow if I recall correctly these motors have a telltale water port should have a strong stream of water coming out if week you are likely not...
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